From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Requesting a spark test on 'Elo' moulded insulation to check for carbon tracking against other materials like Bakelite.
| Identifier | ExFiles\Box 39\3\ Scan122 | |
| Date | 7th July 1921 | |
| X.3513 EFC. from BY.{R.W. Bailey - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} [struck through] c. R.{Sir Henry Royce} [struck through] BY5-P7.7.21. I am sending you herewith a piece of "Elo" moulded insulation. We would like you to arrange for a spark to flash across the surface from our Battery Ignition, in order to see what happens to the material, as Mr Royce is of the opinion that Bakelite and all similar materials, if a spark did flash across, was liable to leave a carbon track as a result in the path of the spark, which would allow a lower voltage to cause a breakdown after such a track had been produced. BY.{R.W. Bailey - Chief Engineer} | ||